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Installation & Basic Operation
Models STS-402E (5281633), STS-403E (5281634), STS-652E (5281635) and STS-653E (5281636) are equipped with
Eductor Venturi plumbing kits and are designed to be plumbed on the output or pressure side of your transfer pump. DO
NOT reduce or restrict flow after the Venturi. Restriction can cause the Eductor Venturi to not function correctly.
Models STS-40 (5281637) and STS-65 (5281638) are designed to go to the suction or inlet side of the transfer pump or
can be plumbed in as a second tank for one of the above Eductor Venturi systems.
Installation:
Identify the STS System you have and determine an installation location.
Note product flow direction and determine if plumbing needs to be reversed.
Systems with a Venturi Eductor must be plumbed so the fluid flow enters from
the large side (A) of the Venturi and exits through the smaller end (B).
*For installations where the plumbing needs to be reversed for proper flow
direction, see page 7 for details.
Mount the STS base to a solid surface utilizing the predrilled holes in the
stand base.
Connect plumbing to inlet and outlet.
Start up Test Procedure:
Before use, check the plumbing with water to insure no leaks and all fittings
and gaskets are tight.
Make sure Bypass Valve is open (C), IF Equipped and Tank Rinse Valve (D) is closed. Valves are OPEN when the handle is
parallel or inline with fluid flow and OFF when the handle is perpendicular or facing opposite of fluid flow.
Make sure the inductor tank product handle (E) is closed. The valve is Closed when the handle is in the UP or raised position.
Open STS Inductor Tank Lid.
Start pump, run at idle (check for leaks).
Check inside of STS tank to see if any liquid is in tank. If so, make sure all rinse valves and product handle are closed.
Close Bypass Valve, IF Equipped, slowly. Check for leaks.
Open STS rinse valve (D) to start water filling in the STS Tank.
Slowly increase RPM of pump to MAX.
Once STS Tank is about 1/2 full, open discharge hose.
Open STS Product Valve (E) by pressing down on product handle.
Close Rinse Valve (D).
Make sure the product level in the STS tank is declining. If not, verify Venturi Eductor is plumbed in the proper direction. Make
sure engine is at Max RPM. Make sure no restriction in discharge hose/plumbing.
Once STS tank is empty, close Product Valve Handle (E). By lifting up on the handle.
Open Bypass Valve Handle (C) to resume full product flow, IF Equipped.
Idle engine down.
Close discharge valve.
Shut pump off.
STS Inductor System is Ready to Use.